Clay-crushing machine



(No Model.)

T. D. MQKINNEY & W. A. SOPER.

CLAY GRUSHING MAGHINE. No. 311,081.

Patented Jan. 20, 1885,

III

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ZV/WW make them slippery, so that there is a diffi- TRUMAN D. MCKINNEYAND \VALTER A. SOPER, OF TECUMSEH, MICHIGAN.

CLAY-CRUSHING MACHINE.

EPECIFICATION forming part of Letters Patent. No. 311,081, dated January20, 1885. Application filed November 5, 1884, (No model.)

T 0 ctZl whom it may concern.-

Be it known that we, TRUMAN D. IVICKIN NEY and WALTER A. SorER, ofTecumseh, in the county of Lenawee and State of Michigan, have inventednew and useful Improvements in Clay-Crushing Machines; and we do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, which form. apart of this specification.

This invention relates to certain new and useful improvements in theconstruction and operation of crushers especially designed for breakingup lumps of clay as they come from the bank, preparatory to deliveringsuch clay to the crushing-rollers, by means of which it is prepared fordelivery to the tile or brick machines, to be fashioned into tile orbrick.

Olay suitable for the manufacture of brick and tile is ordinarily takenout of the bank in lumps, in which there is moisture sufficient to cultyin crushing them in the ordinary crushing-rolls; and the object of thepresent invention is to so construct a device that will, as the lumps ofclay are thrown into the hopper, bite off portions of such lumps intofragments sufficiently small to be successfully acted upon by thecrushing-rolls, to which the clay is delivered after being thus treated.

The invention consists in combining with a crushing-machine a pair ofrevolving jaws, which, in their rotation, alternately bite of the sideof the lump of clay and deliver the same to thecrushing-rolls; also, inthe peculiar construction, combination, and operation of the variousparts, as more fully hereinafter described.

Figure 1 is a perspective view of our improved machine. Fig. 2 is acentral vertical horizontal section of the same. Fig. 3 is a plan of therolls detached.

In the accompanying drawings, which form a part of this specification, Arepresents the base-frame, supported upon suitable legs, and carryingthe'crushing-rolls and the appliances by which they are driven. Upon aprojection of this frame there is suitably journaled the maindriving-shaft B, to which motion is given from any suitable source ofpower. This shaft carries a toothed pinion, O, which engages with thetoothed wheel D, which is secured upon the overhanging end of the shaftE, which carries the comically-shaped crushing-roll F, and is journaledin boxes G, adjustably secured upon the top of the bed-frame. Thisadjustability, which allows the distance between the crushing-rolls tobe varied as circumstances require, is obtained by the holding-downbolts passing through suitable slots in the boxes, in the ordinary andwell-known way of obtaining such end. The wheel D engages with and givesmotion to the toothed wheel H, which is secured to the shaft I, whichcarries the other comically-shaped crushingroll, J, and is journaled inboxes G, similar to those already described, care being taken that inadjusting these rolls they run with parallel faces, as shown in Fig. 3.K is another frame, resting upon and secured to the baseframe A, andcarries the biting-jaws and the appliances for giving them motion, andthe hopper. The wheel D engages with and gives motion to the similarwheel, L, which is secured upon the shaft M, which carries thetriangular or polygonal shaped jaw N, and is journaled in suitableboxes, 0, which are secured to the frame K in any of the known ways.This shaft M also carries the toothed wheel 1?, which engages with andgives motion to the similar wheel, Q,secured upon the shaft 1%, whichcarries the other jaw, S, which is similar to the jaw N, and issupported by similar boxes, 0.

To enable the machine to discharge stones which will not pass betweenthe crushingrolls, and which it is not desirable to have so pass, therear side of the frame opposite the driving-gears is left unclosed.

T are cleaners or scrapers adapted to clean the face ofthecrushing-rolls of clay at the lower point of their rotation.

The frame K is inclosed at the gearing side to prevent the clay undertreatment from interfering with the driving mechanism, and this inclosedend forms one of the sides of a three-sided hopper into which the clayis thrown as it comes from the bank, to be acted upon, first, by thejaws, and, secondly, bythe crushing-rolls.

-In practice the corners of the jaws, in their rotation, will break upthe lumps of clay by biting off first on one side and then on the other,and delivering the clay thus broken up to the crushingrolls, the actionof which will prepare the clay for the tile or brick machine.

We are aware that machines of this class have been provided with devicesarranged within a hopper for the purpose of breaking up the lumps ofclay before they are delivered to the crushing-rolls; but, so far as weare aware,such devices have consisted of a shaft orshafts pro vided withfingers or teeth; but we make no claim to such constructions as formingpart of our invention. Such constructions have been found objectionablefor the reason that the teeth or fingers are liable to be broken eitherby being clogged up by the moist clay or by the stones therein. We avoidthese difficulties by the use of our jaws S N, which consist of shaftsof polygonal shape, preferably triangular, thecorners of which break offportions of the lumps as they come in contact therewith. It will thus beseen that we employ no teeth or fingers. It will also be noticed thatthese jaws are so set in relation to each other that as they revolve thecorner or point of one is opposite one of the faces of the other, asplainly shown in Fig. 2. WVe attach importance to this arrangement, bymeans'of which the lumps are much more effectively broken up than theywould be if the jaws were set face to face.

WVhat we claim as our invention is 1. In a clay-crusher, a pair ofpolygonally O shaped jaws adapted to rotate within a hopper to break uplumps of clay and deliver the same to a pair of crushing-rolls,substantially as and for the purposes described.

2. In a clay-crusher, a pair of polygonal jaws adapted to break up thelumps of clay with their corners, substantially as and for the purposespecified.

3. In a clay-crusher, a pair of triangular shaped jaws constructed andarranged to rotate within a hopper to break up lumps of clay beforedelivering the same to the crushingrolls, substantially as and for thepurposes described.

4. In a clay-crusher, a pair of polygonal jaws arranged to revolve withthe corner of one jaw opposite the face of the other jaw, whereby thelumps of clay are broken up by said corners before beingdelivered to thecrush ing-rolls, substantially as described.

TRUMAN D. MCKINNEY. WALTER A. SOPER.

\Vitn esses:

H. S. SPRAGUE, E. 801mm.

